Crystal structure determination of nanolaminated Ti_(5)Al_(2)C_(3) by combined techniques of XRPD,TEM and ab initio calculations  

作　　者：Hui ZHANG Xiaohui WANG Yonghui MA Luchao SUN Liya ZHENG Yanchun ZHOU 

机构地区：[1]Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,72 Wenhua Road,Shenyang 110016,China [2]Graduate School of Chinese Academy of Sciences,Beijing 100039,China [3]Science and Technology on Advanced Functional Composite Laboratory,Aerospace Research Institute of Materials&Processing Technology,No.1 South Dahongmen Road,Beijing 100076,China

出　　处：《Journal of Advanced Ceramics》2012年第4期268-273,共6页先进陶瓷（英文）

基　　金：This work was funded by the NSFC under Grant No.50832008,Grant No.91226202 and the IMR innovative research foundation.

摘　　要：Crystal structure of Ti_(5)Al_(2)C_(3)was determined by means of X-ray powder diffraction(XRPD),transmission electron microscopy(TEM)and ab initio calculations.In contrast to the already known P63/mmc space group that the MAX phases crystallize,it was demonstrated that the R3_m space group could better satisfy the experimental data.The lattice parameters are a=0.30564 nm,c=4.81846 nm in a hexagonal unit cell.

关 键 词：Ti_(5)Al_(2)C_(3) crystal structure layered carbides transmission electron microscopy(TEM) 

分 类 号：R73[医药卫生—肿瘤]